Validating email id
The trick is to first define what we mean by ‘valid’.We are developers, we are technical folk, so it’s no surprise that the prevailing wisdom is to check that it matches the official criteria, some examples of the diversity of the official criteria are…If you have a well laid-out form with a label that says “email”, and the user enters an ‘@’ symbol somewhere, then it’s safe to say they understood that they were supposed to be entering an email address. Next, we want to do some validation to ascertain if they correctly entered right?Email Checker is a simple tool for verifying an email address. It extracts the MX records from the email address and connect to mail server (over SMTP and also simulates sending a message) to make sure the mailbox really exist for that user/address.
I think Regex is only good for a rudimentary validation.It seems that the checking validation of email addresses is actually two separate problems: 1- Validation of email format: Making sure if the email complies with the format and pattern of emails in RFC 5322 and if the TLD actually exists. For example, although the address The only way to validate an email address is to send an email then wait for response.Apart of this, here is an url where you can test if your address is RFC822 compliant: mythic-beasts.com/~pdw/cgi-bin/emailvalidate .With this free email validation service, you can easily verify an email address and confirm if it is valid, properly formatted and really exists. NET developers who need email address validation in their solutions.Just type the email address you want to validate, select the desired level of verification and submit the form. It features a very fast, multi-threaded verification library that can validate hundreds of email addresses per minute.